Chau lost to No 2 seed Wei Chen Yang of Taipei in the qualifying round on Aug. 8.
Chau, who won a bronze medal at the world championships last year, hadpreviously beaten Wei twice: once at the Asian Olympic qualifier in2011, and once the Asian championship held in Ho Chi Minh City lastMay.
Another Vietnamese representative in the taekwondoevent, Chu Hoang Dieu Linh is schedule to meet No 6 seed Helena Fromm ofGermany in the first round match of the 67kg class on Aug. 9. Thiswill prove to be a huge challenge for Linh, who is attending her veryfirst Olympics.
In the women's 48kg freestyle wrestling,Vietnamese female wrestler Nguyen Thi Lua lost to Canadian Carol Huynh,who is of Vietnamese origin, 5-0 in the qualifier.
Huynh won a gold medal at Beijing 2008 and also wo the recent international championships.-VNA